›› 2012, Vol. 32 ›› Issue (2): 43-47.doi: 10.3780/j.issn.1000-758X.2012.02.007

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StartupandOperatingCharacteristics ofCapillaryWickEvaporator

 LI  Jin-Wang1, ZOU  Yong2, CHENG  Lin2   

  1.  (1 NanjingResearchInstituteofElectronicsTechnology, Nanjing 210039)
     (2 ShandongUniversity, Jinan 250061)
  • Received:2011-06-27 Revised:2012-04-25 Online:2012-04-25 Published:2012-04-25

Abstract: Theeffectsofporouswickporosityandheatsourcepoweronstartupand operatingcharacteristicsofcapillarywick evaporator(justlikealoopheatpipewithoutlinkingthevaporline)wasinvestigated.Theexperimentwascarriedoutwithout mixingtheeffectoftheworkingfluidandthecondenser.Theresultshowsthatthetemperatureoftheevaporatorwill fluctuateinsomecasesduringthestartupofthesystem.Theheatsourcepowerwhichmakesthetemperaturefluctuated decreasinglywiththeincreasingporosityoftheporouswick.Whenporouswickisthesame,temperatureiseasierto fluctuateanditwillbemuchseriouswith the biggerheatsourcepower.Thereasonforthetemperaturefluctuationisthatthe porosity of porous wick does notmatchwiththeoutsideparameters,suchastheheatcoursepower.

Key words: Porosity, Heat source power, Operating characteristics, Capillary wick evaporator, Loop heat pipe, Thermal control, Spacecraft